Support ' in styled text and document it

Origin: https://invent.kde.org/qt/qt/qtdeclarative/-/merge_requests/3/diffs
Forwarded: not-needed
Applied-Upstream: https://invent.kde.org/qt/qt/qtdeclarative/-/commit/0dda47d9f1a22567ad8f1266be2f0cd8a9226c7f

This ensures that some translations really look ok.

Gbp-Pq: Name support_apos_in_styled_text.patch

make tst_qmldiskcache::regenerateAfterChange() pass on big endian systems

Origin: upstream, https://code.qt.io/cgit/qt/qtdeclarative.git/commit/?id=dab0d62b655ce9a4
Last-Update: 2021-02-11

Gbp-Pq: Name tst_qmldiskcache_big_endian.patch

build fixes for GCC 11

Origin: upstream, https://code.qt.io/cgit/qt/qtdeclarative.git/commit/?id=eb6525f126f680f9
Last-Update: 2022-11-05

Gbp-Pq: Name gcc_11.patch

qtdeclarative-opensource-src (5.15.7+dfsg-2) unstable; urgency=medium

  * Update symbols files for alpha.
  * Upload to unstable.

[dgit import unpatched qtdeclarative-opensource-src 5.15.7+dfsg-2]

Import qtdeclarative-opensource-src_5.15.7+dfsg-2.debian.tar.xz

[dgit import tarball qtdeclarative-opensource-src 5.15.7+dfsg-2 qtdeclarative-opensource-src_5.15.7+dfsg-2.debian.tar.xz]

Import qtdeclarative-opensource-src_5.15.7+dfsg.orig.tar.xz

[dgit import orig qtdeclarative-opensource-src_5.15.7+dfsg.orig.tar.xz]